familyAsteraceae
tribeAsteraceae tribe Astereae
genusCroptilon
speciesCroptilon hookerianum
varietyCroptilon hookerianum var. hookerianum

Croptilon hookerianum var. hookerianum

Guy L. Nesom
Treatment appears in FNA Volume 20. Treatment on page 230. Mentioned on page 229.
Revision as of 21:54, 29 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Stems and peduncles densely short-stipitate-glandular (longest hairs 0.2–0.3 mm, including glands), never hispid. Ray laminae 1.2–2.2 mm wide. 2n = 12 (14 in one population).


Phenology: Flowering Jul–Oct.
Habitat: Sand, sandy loam, silt, stream banks, fields, roadsides
Elevation: 20–200 m

Distribution

V20-510-distribution-map.gif

Tex.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Croptilon hookerianum var. hookerianum"
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2n chromosome quantity
12 +
Abaxial face pubescence
arachnoid +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther dehiscence
introrse +
Anther fusion
connate +
Apex fusion
distinct +
Apex growth form or texture
herbaceous +
Apex size
subequal +
Apex texture
scarious +
Apical appendage quantity
0 +
Apical appendage shape
usually triangular +  and linear +
Appendage pubescence
hirsute +
Appendage relief
papillate +
Appendage shape
usually deltate +  and lanceolate +
Array architecture
paniculiform +  and branched +
Array architecture or fragility
loose +
Array development
indeterminate +  and determinate +
Author
Guy L. Nesom +
Authority
(Torrey & A. Gray) House +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
Basionyms
Isopappus hookerianus +
Blade architecture
3-nerved +
Blade shape
narrowly oblanceolate;lanceolate +
Body architecture or pubescence or relief
smooth +
Body architecture or shape
ribbed +
Body relief
rugulose +  and muricate +
Branch arrangement or course or shape
linear +
Branch structure in adjective form
stigmatic +
Bristle architecture
barbellate +
Bristle coloration
tawny +  and reddish-brown +
Bristle pappus duration
persistent +
Bristle quantity
30;35 +
Bristle shape
Attenuate (?) +
Bristle variability
equal +
Calyculus presence
absent +
Cauline leaf-blade shape
lanceolate;linear +
Cauline leaf-blade size
reduced +
Corolla architecture
not 2-lipped +  and actinomorphic +
Corolla coloration
yellow +, bright-yellow +  and yellow-orange +
Corolla lamina some measurement
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Corolla presence
absent +
Cypsela architecture
6-14+-nerved +
Cypsela architecture or shape
beaked +, 2-ribbed +  and 5-ribbed +
Cypsela growth form
dimorphic +
Cypsela shape
terete +  and weakly angled +
Disc-floret atypical quantity
70 (108) +
Disc-floret quantity
33 (70) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Tex. +
Elevation
20–200 m +
Embryo course
straight +
Face pubescence
strigose +  and sericeous +
Filament fusion
distinct +
Floret architecture
pistillate +, staminate +  and neuter +
Floret atypical quantity
5;15 +
Floret position
proximal +
Floret quantity
1;5 +
Floret reproduction
bisexual +
Fruit architecture
winged +  and beaked +
Fruit condition or texture
dry +
Fruit density
dispersed +
Habitat
Sand, sandy loam, silt, stream banks, fields, roadsides +
Head arrangement
in loose , widely branched , paniculiform arrays +  and singly +
Head development
indeterminate +
Head reproduction
heterogamous +  and homogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Barbara Alongi +
Individual head architecture
each +  and sessile +
Involucre atypical width
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Involucre diameter
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Involucre length
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Involucre position relational
surrounding +
Involucre shape
campanulate +
Involucre width
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Leaf architecture
sessile +
Leaf arrangement
alternate +
Leaf position
cauline +  and basal +
Line quantity
2 +
Lobe atypical quantity
4 (5) +
Lobe orientation
erect;spreading +
Lobe quantity
5 (?) +
Lobe shape
triangular +
Margin architecture or shape
entire +  and serrate +
Margin prominence or shape
flat +
Margin texture
scarious +
Number of lower taxa
0 +
Ovary architecture
2-carpellate +
Ovary architecture or structure in adjective form
1-locular +
Ovary position
inferior +
Ovule fixation
attached +
Ovule orientation
anatropous +
Ovule quantity
1 +
Pappus duration
persistent +
Peduncle pubescence
hispid +  and short-stipitate-glandular +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering Jul–Oct. +
Phyllarie architecture
1-nerved +
Phyllarie duration
persistent +
Phyllarie fusion
distinct +
Phyllarie growth form or texture
herbaceous +
Phyllarie life cycle
falling +
Phyllarie quantity
22 (40) +
Phyllarie shape
lanceolate +  and linear-lanceolate +
Phyllarie size
unequal +
Phyllarie texture
Herbaceous (Chartaceous or scarious) +
Publication title
Bull. New York State Mus. Nat. Hist. +
Publication year
1921 +
Ray-floret architecture
pistillate +
Ray-floret atypical quantity
21 (29) +
Ray-floret presence
absent +
Ray-floret quantity
13 (21) +
Ray-floret reproduction
fertile +
Ray lamina width
0.12 cm1.2 mm <br />0.0012 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
Receptacle architecture
epaleate +
Receptacle prominence or shape
flat +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle relief
pitted +
Receptacle shape
concave;usually flat;conic +
Reference
None +
Root texture
fibrous +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
1 (2) +
Series quantity
1;3;5 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V20 510.xml +
Special status
Endemic +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
eglandular +  and branched +
Stem atypical some measurement
80 cm800 mm <br />0.8 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
Stem orientation
erect +
Stem pubescence
hispid +  and short-stipitate-glandular +
Stem some measurement
20 cm200 mm <br />0.2 m <br /> (80 cm800 mm <br />0.8 m <br />) +
Style-branch appendage shape
linear-triangular +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
glabrous +
Style quantity
1 +
Style relief
papillate +  and smooth +
Synonyms
Croptilon divaricatum var. hookerianum +  and Haplopappus validus subsp. torreyi +
Taxon family
Asteraceae +
Taxon name
Croptilon hookerianum var. hookerianum +
Taxon parent
Croptilon hookerianum +
Taxon rank
variety +
Throat shape
tubular +
Tube height or length or size
shorter +
Volume
Volume 20 +
Whole-organism architecture
taprooted +
Whole-organism duration
perennial +  and annual +
Whole-organism some measurement
20 cm200 mm <br />0.2 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
Whole organism growth form
tree +, shrub +  and subshrub +
X chromosome quantity
4 +, 5 +, 6 +  and 7 +